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Power Systems

Power Systems
A loss less transmission line has a length of 600 km, find the phase shift of voltage signal?

 45°
 36°
 42°
 90°

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Power Systems
Surge impedance loading of a 3-phase, 400 kV transmission line is 400 Ω. The surge impedance loading is

 1600 MW
 800 MW
 400 MW
 200 MW

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Power Systems
The specific speed ( NS ) of turbine is given by

  N√( P ) / H1.25.
 N√( P ) / H2/3.
 none of these.
 P√( N ) / H3/2.

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Power Systems
Pump storage schemes are used to improve

  the plant capacity factor as well as the load factor of the power system.
 the power factor.
 the load factor.
 the diversity factor.

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Power Systems
Corona loss is ----------------- on hilly areas than as plain areas.

 remain same
 more
 less
None of these

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Power Systems
Pipes carrying steam are generally of

 cast iron.
 aluminium.
  steel.
 cobalt.

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